Some things to think about...
If you are transporting the shipment, you will need a truck that can handle the load. Your granite will be packed in a wooden pallet A-frame for shipping. You can calculate the weight of your load by multiplying the area in square feet by 20 pounds per square foot.

The A-frame will be connected with drywall screws. You will need a screwdriver to remove your granite.

Many of your parcels will be quite heavy. You can estimate the weight at the 20 pounds per square foot. For example, a 3'x6' island will weigh 360 pounds. Not only do you need to carry this piece,
but you need sufficient help to maneuver the piece into place without undue stress - this means lots of hands around the piece as it is turned from vertical (ALWAYS carry granite counters vertically) to horizontal.